<!--
 * @Author: error: error: git config user.name & please set dead value or install git && error: git config user.email & please set dead value or install git & please set dead value or install git
 * @Date: 2023-03-17 22:33:38
 * @LastEditors: error: error: git config user.name & please set dead value or install git && error: git config user.email & please set dead value or install git & please set dead value or install git
 * @LastEditTime: 2023-03-18 20:19:41
 * @FilePath: \从0到1的楷楷\从0到1的楷楷\pink系列\Javasritp\第三天\js\06-打印直角三角形.html
 * @Description: 这是默认设置,请设置`customMade`, 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
-->
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    // 1. 外层循环控制行数
    for (let i = 1; i <= 5; i++) {
      // 2. 里层循环控制列数（几个星星）
      for (let j = 1; j <= i; j++) {
        document.write('◆')
      }
      // 换行
      document.write('<br>')
    }

  </script>
</body>

</html>